package cn.tedu.charging.order.config;


import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class RabbitMQConfiguration {
    // 正常队列
    public static final String EXCHANGE_NAME = "charging_order_exchange";

    public static final String ROUTING_KEY = "charging_order_routing_key";

    private static final String QUEUE_NAME = "charging_order_queue";


    @Bean
    public DirectExchange exchange(){
        //消息持久化
        Boolean durable = true;
        //队列是否自动删除
        Boolean autoDelete = false;
        return new DirectExchange(EXCHANGE_NAME, durable, autoDelete);
    }

    @Bean
    public Queue queue(){
        // 为正常队列设置 时间和过期后的死信队列
        Map<String,Object> args = new HashMap<>();
        // 设置模拟时间
        Integer ttl = 2 * 60 * 1000;
        args.put("x-message-ttl", ttl);
        // 设置正常队列的死信队列的Exchange
        args.put("x-dead-letter-exchange", DEAD_LETTER_EXCHANGE_NAME);
        // 设置正常队列的死信队列的路由键
        args.put("x-dead-letter-routing-key", DEAD_LETTER_ROUTING_KEY);
        // 消息持久化
        Boolean durable = true;
        // 互斥 连接级别的互斥
        Boolean exclusive = false;
        // 队列是否自动删除
        Boolean autoDelete = false;
        return new Queue(QUEUE_NAME, durable, exclusive, autoDelete, args);
        //return new Queue(QUEUE_NAME);
    }

    @Bean
    public Binding binding(){
        return BindingBuilder.bind(queue()).to(
                exchange()).with(ROUTING_KEY);
    }

    // 创建死信队列
    private static final String DEAD_LETTER_EXCHANGE_NAME = "dead_letter_charging_order_exchange";

    private static final String DEAD_LETTER_ROUTING_KEY = "dead_letter_charging_order_routing_key";

    public static final String DEAD_LETTER_QUEUE_NAME = "dead_letter_charging_order_queue";


    @Bean
    public DirectExchange deadLetterExchange(){
        //消息持久化
        Boolean durable = true;
        //队列是否自动删除
        Boolean autoDelete = false;
        return new DirectExchange(DEAD_LETTER_EXCHANGE_NAME, durable, autoDelete);
    }

    @Bean
    public Queue deadLetterQueue(){
        //消息持久化
        Boolean durable = true;
        //队列是否自动删除
        Boolean autoDelete = false;
        return new Queue(DEAD_LETTER_QUEUE_NAME, durable, false,autoDelete);
    }

    @Bean
    public Binding deadLetterOrderBinmding(){
        return BindingBuilder.bind(deadLetterQueue()).to(
                deadLetterExchange()).with(DEAD_LETTER_ROUTING_KEY);
    }

}
